I just received my Medscape on-line subscription synopsis today and the main article was:

Hot Topic: Epidemiology of Tuberculosis among Foreign-Born Residents of the United States (posted 10/10/08) Tamar F. Barlam, M.D.; Dennis L. Kasper, M.D.

Here is a link to the article, I do not know if it will work if you are not a member (It is my account, so please do not abuse the opportunity, if it works), so here is also the first paragraph:

Link

Although the overall incidence of tuberculosis (TB) is declining in the United States, the number of cases among foreign-born persons has increased. In 2006, foreign-born persons accounted for 57% of all TB cases in this country. TB among foreign-born residents is usually due to reactivation of infection acquired before arrival in the United States. Population-based data are needed to guide strategies for identifying, treating, and preventing TB in foreign-born persons.

Pete